4 eps
New on Back'n'Time
My Research Subject Is My Fated Lover
Episodes 1–4 stream here.
Episodes4 episodes · 1–4 free here
Free on Back'n'Time
The story
Quick answer: 4 episodes, English original audio, and episodes 1–4 play right here tonight.
Marina, a xenobiology grad student, tries to teach a mysterious merman to court a mate — only to discover he's a siren, not a merman at all. When he kidnaps her, she uncovers a forgotten childhood bond and a ten-year promise she never kept.
A dark, tender interspecies romance about loyalty, guilt, and redemption.
- Episodes
- 4
- Language
- English
- Free here
- Episodes 1–4
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Questions people ask
How many episodes are there in My Research Subject Is My Fated Lover?
My Research Subject Is My Fated Lover has 4 episodes in total. Short dramas run about one to two minutes an episode, so it is an easy one-sitting binge. Episodes 1–4 play right here on Back'n'Time.
Can I watch My Research Subject Is My Fated Lover for free?
Yes — the first 4 episodes are free to watch on this page, no account and no sign-up.
What happens after episode 4?
Tap episode 5, or any tile with a lock on it, and we hand you over to the official app at that episode. If the app isn't installed yet, you'll land on its store page first. We don't host the locked episodes and we never ask for payment details.
What's My Research Subject Is My Fated Lover about?
The story section above has the setup without spoilers past episode 4.
What language is My Research Subject Is My Fated Lover in?
The audio is English. It was added to Back'n'Time on Oct 30, 2026.
Episode 5 continues in the app
You've watched the free part. My Research Subject Is My Fated Lover carries on in the official app — we'll open it at this episode.
Continue in the official appKeep watching 1–4